"Not far from Valley Forge, around the corner from Bravo Pizza, up the road from Paoli Auto Body, there is an odd-looking office building that resembles a stone castle. An eye doctor is on the first floor. On the second floor is a search engine. The proprietor of the search engine is Gabriel Weinberg, who is 33. A few years ago, when Weinberg told his wife about his new business idea - pitting him against more established outfits such as Google and Bing - he admits that she briefly thought he was nuts." What a success story.